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Available for one or two new projects this month

Build and launch your SaaS with a senior .NET engineer, without the hiring overhead

I design and ship production ready SaaS: secure authentication, scalable APIs, payments, CI CD, monitoring, and modern web UIs.

Get a free consultation See recent work

Typical builds start at 4,000 EUR plus VAT. Day rate is 260 to 310 EUR plus VAT. Hourly rate is 52 EUR plus VAT.

Sandor Szaloki

Sandor Szaloki

Budapest, senior .NET and Azure, SaaS builder

8+ yrs

Professional experience

Serverless

Azure Functions and CosmosDB

CI CD

Azure DevOps and GitHub Actions

SaaS

Auth, billing, observability

Download CV

I build scalable cloud solutions using .NET, C#, and modern web frameworks, from MVP to production ready platforms.

Senior engineering with product mindset and cost efficient cloud architecture

I focus on platforms that are scalable, observable, and economical to run, especially for early stage teams.

Production readiness

Security first auth flows, clean API boundaries, and practical observability across logs, metrics, and traces.

Speed with quality

Fast MVP delivery without painting you into a corner, pragmatic architecture and maintainable code.

Cost efficient scaling

Serverless patterns that keep costs low early and stay safe to scale when traction arrives.

Sandor Szaloki portrait
.NET Azure Serverless Microservices Blazor and Angular

Hi, I'm Sandor. I build SaaS platforms that ship, scale, and stay maintainable.

I deliver MVPs and long lived systems with clear architecture. My focus is backend engineering, cloud architecture, and end to end SaaS execution.

You get

  • ✓ Clear scope and milestones
  • ✓ Clean, scalable architecture
  • ✓ Production deployment and monitoring

You avoid

  • ✕ Hiring delays and ramp up
  • ✕ Prototype only code
  • ✕ Opaque delivery
Talk about your project See services Download CV

Services

Modular capabilities you can combine into an MVP build, a scale up sprint, or ongoing engineering support.

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Backend and APIs

Secure, scalable APIs and serverless workloads using .NET and clean architecture.

Web UI

Practical dashboards and portals built with Blazor or Angular.

Data and storage

CosmosDB, SQL, PostgreSQL, indexing, partitioning, and cost performance tradeoffs handled deliberately.

Billing and SaaS ops

Stripe subscriptions, webhooks, plan gating, and the parts that make SaaS work.

DevOps and CI CD

Automated builds and deployments using Azure DevOps, GitHub Actions, and Docker.

Observability

Monitoring and alerting patterns that help you detect issues early and keep costs visible.

Recent work

Representative projects demonstrating SaaS delivery, serverless architecture, and end to end execution.

SimpleBoards screenshot

SimpleBoards

Leaderboard as a Service, auth, API, dashboard, optimized for low cost and scalable traffic.

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InsightRelay screenshot

InsightRelay

Feedback capture and automation platform with integrations (Discord, GitHub, Trello, webhooks) and tag based routing.

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Setr's Auto Battler screenshot

Setr's Auto Battler

Cross platform async multiplayer game using Azure Functions, Godot, and C#.

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Rentible screenshot

Rentible

Web platform with backend and frontend delivery, plus Web3 integration for fundraising flows.

Hungarian university project

Private

Enterprise software delivery in a university environment, from requirements to production support.

High level overview available on request.

Government banking project (Hungary)

Private

Banking domain project in a government context, focusing on reliability, security, and maintainable business logic.

High level overview available on request.

Client testimonial

Professionally transformed our business logic and high level brief into a working product. Much recommended freelancer in case you're looking for a versatile full-stack developer with a creative problem solving approach

Packages

Transparent starting points. Final pricing depends on scope, timelines, and integrations.

Starter MVP

Best for validating demand with a production ready foundation.

4,000 EUR

Plus VAT

Starting at

Get a quote
Most popular

Growth SaaS

For monetized SaaS with payments, CI CD, and stronger security.

10,000 EUR

Plus VAT

Starting at

Plan your build

Enterprise and custom

Complex systems, multi region, compliance, or deep integrations.

25,000 EUR

Plus VAT

Scope based

Talk to me

Prices are net. Plus VAT. First consultation is free. Day rate is 260 to 310 EUR plus VAT. Hourly rate is 52 EUR plus VAT.

Get in touch

Tell me what you're building and what "done" looks like. I'll respond with next steps.

What helps me estimate quickly

  • • Target users and your top three workflows
  • • Integrations you need, for example Stripe or auth providers
  • • Deadline constraints and priorities

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Let's build your SaaS